修改vm信息展示

@@ -299,11 +299,11 @@
                 width: "80px",
                 field: "cpu"
             }, {
-                title: "A/T-Mem(MB)",
+                title: "可用/总内存(MB)",
                 width: "180px",
                 field: "mem"
             }, {
-                title: "I/O-Net(Mbps)",
+                title: "网络I/O(Mbps)",
                 width: "100px",
                 field: "net"
             },